6998537 has 8 divisors (see below), whose sum is σ = 8613696. Its totient is φ = 5537232.

The previous prime is 6998533. The next prime is 6998561. The reversal of 6998537 is 7358996.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6998537 - 2² = 6998533 is a prime.

It is a d-powerful number, because it can be written as 6 + 9³ + 9⁷ + 8⁷ + 5 + 3³ + 7⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 6998491 and 6998500.

It is not an unprimeable number, because it can be changed into a prime (6998533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38363 + ... + 38544.

It is an arithmetic number, because the mean of its divisors is an integer number (1076712).

Almost surely, 2^6998537 is an apocalyptic number.

It is an amenable number.

6998537 is a deficient number, since it is larger than the sum of its proper divisors (1615159).

6998537 is a wasteful number, since it uses less digits than its factorization.

6998537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76927.

The product of its digits is 408240, while the sum is 47.

The square root of 6998537 is about 2645.4748156049. The cubic root of 6998537 is about 191.2797905948.

The spelling of 6998537 in words is "six million, nine hundred ninety-eight thousand, five hundred thirty-seven".